Spring-hub for wheels.



G. H. THOMAS.

SPRING HUB FOR WHEELS.

APPLICATION man SEPT. 19. 1914.

Patented May 18, 1915.

2 SHEETS-SHEET I.

vii

(KH.THOMAS G. H. THOMAS.

SPRING HUB FOR WHEELS.

APPLICATION FILED SEPT. 19. I914.

1,139,600. Patented May18,1915,

2 SHEETS-SHEET 2.

entrain snares 9 new c rr es.

SPRING-HUB non wI-IEELs.

Specification of Letters Patent.

Patented May 18, 1915.

Application filed September 19,- 1914. Serial No. 862,624.

To aZZ whom it may concern:

Be it known that I, GEORGE H. THOMAS, a

citizen of the United States, residing at Mineral Ridge, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Spring- Hubs for Wheels, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to certain new and useful improvements in spring hubs for wheels, and has for its object to produce a hub of the character stated which shall be comparatively economic of construction with the parts readily assembled and which shall be thoroughly practicable for the'purpose designed. I

With these ends in view my invention consists in the details of construction and arrangement of the several parts as will be hereinafter more particularly described and as illustrated in the drawings. i

In order that those familiar with the art to which my invention appertains may know how to make and to fully appreciate the action and advantages of my improved huh, I

will proceed to describe the same referring by numerals to the accompanying drawings,

in which Figure 1, is a side elevation partly in section. Fig. 2, is a section on the line aa of Fig. 1, Fig. 8, is a detail View of the spring mounting, Fig. 4, is a perspective view of one of the spring members on an enlarged scale, Fig. 5 is a vertical section of one of the clevis connections. 2

Similar reference numerals indicate like parts in the several figures of the drawings.

1 is the interior section of a duplex hub and 2 is the exterior ring section of the same from whichradiate the spokes 3 secured at their outer ends in any ordinary manner to a rim 4. V

The duplex hub is mounted and secured upon an axle 5 in any desired manner.

The interior section of the hub is formed as shown in Fig. 2 with a cylindrical short projection 6, and with a disk 7 and at the outer extremity with an enlarged disk 8 having an interior annular shoulder 9 and an exterior cylindrical projection 10 by which the hub section may be secured to the axle 5 by a diametric pin 11.

The disks are spaced apart to receive the spring members to be presently described, and this hub section between the disks is square as shown at 12 and ismounted centrally upon the axle 5.

Eight flat metal springs 13 are rigidly secured to-the four sides of the rectangular part 12 by suitable rivets or screw bolts 14 that is upon each face of the interior section there are secured two springs with their free ends projecting as clearly shown at Fig. 1 and the two springs are arranged edge to edge as shown at Fig. 2 so that they occupy the entire space between the disks 7 and 8.

To the outer free end. of each of these fiat metal springs 18, is pivotally connected by pivot pins 15,, the inner open ends of a clevis connection 16 of the form shown in section at Fig. 5, the outer or free ends of said springs being returned as shown at 17 and secured in any suitable manner. The pivot pins 15 pass through orifices 21 adj acent to the open ends of the clevises.

This formation will be best understood by reference to the enlarged perspective shown at Fig. 4' in which. 18 are the orifices for the passages of the rivets or screws 14, and 19 is an orifice near the inner end of the spring which projects slightly beyond the square portion 12 of the inner section of the hub, and isadapted to receive a tooth 20, at the extremity of the spring at a right angle thereto (see Fig. 3). I

The. outer closed ends of the clevises 16 of each series which overlap are formed with orifices 17 and are pivotally connected by a transverse screw bolt 22, as will be presently again referred to.

The exterior ring section 2 of the hub is formed with an interior annular recess 23 (see Fig. 2), and inwardly projecting annular flanges 24, and with exterior annular recesses 25, and also with a peripheral recess 26 for the reception of the spokes 3. In assembling the two sections of the hub and the spring members, the open ends of the clevises are pressed toward the center sufiiciently to permit the inner section and its spring members to be readily passed within the ring hub section 2 and until the enlarged disk portion 8 is in contact with the annular exterior recess 25.

When the orifices 17 X coincide and are in alinement with the quadrantly disposed transverse bolt holes in the flanges 24 on the ring section 2 the bolts are passed through the flanges 24 and the interiorly located clevises and thus the two sections of the. wheel are connected in operative relation. I By reference to Fig. l of the drawing it will be seen that the clevises are disposed at 7 more than a right angle to one another, and when radial pressure is exerted upon the outer ends of the clevlsesytheir inner ends which are pivotally connected to the ends of adjacent springswill be forced apart and the sprlngsnecessarlly' put under compression and when pressure upon the outer ends of the clevises is released the springs resume their normal positions.

'-' All of the parts of my improved hub and spring connections between the two sections of the hub are interchangeable'so that Should any part become broken a new part may be readily substituted. j

A, face plate 27 is secured tothe outer surface of the ring section by bolts 28, and 29 is disk plate surrounding the hub projection band confined in place by a ring plate 30,

which is secured to the outer section by screw bolts 31, so that thetwo hub'sections are thus held-in fixed lateral relation.

A brake drum 32, is secured to the inner section ofthe hub by screw bolts 33.

. subjected to vertical vibration,thevertical From the construction shown 'and' de: scribed it will be readily understood that when a vehicle mounted upon 'wheels equipped with my'improved spring hub vis pressure exerted upon the connected ends of the clevises, their movement inwardly will spread apart the'ends of the springs 13 which will be guided in their spreading and A return movement by the teeth 20 within the orifices 19 of the springs at right ,angles' Todisassemblethe hub the faceplate 27.

being removed and the wheel removed from the .aXle 5 the brake drum' is removed by unscrewing the bolts 33. The ring plate 30 and the disk plate 29 are now readily also removed and then by withdrawing the quadrant bolts 22 andreleasing the outer ends of the clevises 16, these ends may be pressed 1 'lVitnessesz inwardly whereupon the interior section of the hub maybe withdrawn from the outerring section 2.

Copies of this patent may be obtained for five cents each, by addressing the, Commissioner of Patents; 1 Washington, D. G. i v

I of course do not wish to be confined to the GXitCtdGtallS of construction shown nor to the exact proportions or the materials used, as variations in these particulars may be ;made without departing from the spirit of myinvention. 7

Having described the construction, ar-

'rangement i and operation of my improved spring hub, what I claim as new and desire to secure by Letters Patent, is Q i 1. In a spring wheel, a many-sided hub,

an annulus concentric to the hub but inde-' pendent thereof, a pair of fiat springs attached edge by edge to each 'face of the hub l' proj ecting in opposite directions there- 'beyond, each spring on one face of the hub crossing the spring on an adjacent face, and a pair of 7 links for each pair of crossed side andpivoted at their outer ends to the annulusv and extending inward in divergent-relation, the inner end of each link being i'ng spring- 1 2. In a spring wheel, a many-sided hub, anannulus concentric to the hub butindependent thereof, a pair of flat 'sp'rings atsprings, said links being disposed side by f 1 V pivoted to the outer end of the correspondtached edge by edge to eachface er the hub and projecting in oppositedirecti'ons' beyond the hub, each spring on one face of the hub crossing the spring on 'anadjacent face," a pair of 'U-shaped links for each pain of crossed springs, the closed ends Of'Stld. links" being disposed side by side and being piva oted to e'ach other and to the annulus, the inner ends of" the-legs of each link being pivoted to the outer ends of the-corresponding spring. 7

3. In a spring 'WheeL'a many-sided hub, T

an annulus concentric to the hub but independent th'ereof, a pair of springs attached edge by edge to each face" of 'the'hub and. 1

hub, each spring on; one face of'the hub crossingthe spring on an adjacent face,each 1 spring at its end being bent uponritself to form abead, and a pair of U-shapedlinks projecting in opposite directionsbeyond the I and to the annulus, the inner ends of'the legsof'each link beingpivotally connected to the corresponding outer end of the-corresponding spring throughsaid bead.

In testimony wher'eofI hereunto-aflix signature in thepresence of two witnesses.

GEORGE HARRSON THOMAS.

ARCHIE WA'rsoN," MABEL WATSON. 

